Engine wont turn a complete revolution

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Installing my head with new KW valve train and I cant get it to turn a complete revolution. It binds when the cam tries to open the intake valves., either direction.

Is it possible that the local machine could have assembled it in a way that would cause the intake valves to bind?

I laid the bike over and removed the ignition cover, followed all around the flywheel and inspected the chain, it is on the crank and not binding on anything. The engine will turn over freely until the cam is installed

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That does sound strange, one of the first things I thought of was the chain not being on all the way or out of place somewhere, but if thats good I think I would remove the cam and push down on all four valves by hand to check that they move normally. Did it have a problem before you took it apart?

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The chain was off, feeling it under the flywheel it feels good, looking at it from the top it looks good. Is there a better way to check, should I remove the flywheel? When it was off the cam would not go into the head and now it goes in normally.

If it was off why would it turn 340 degrees?

I will try to push with my fingers.

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If you cant see that the chain is on all the way around then remove the fw just to make sure, also check the little metal gaurd or chain stay just below the crank and chain to make sure its not bent wrong or damaged somehow.

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Once when i put my head back together i was just barley off of TDC when i set my head on and lined up the cam and my bike bound up on me just like that. instead of removing the covers and lining up the dots i just removed the head and reset the piston at TDC and put it all back together. Lined up the cam with the top of the head and i was in business.

If you can make the piston cycle by turning the cam chain it should be on there properly. Also i don't think it's possible to get the chain on the cam sprocket it the chain was not properly set on the crank.